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Fuel -> Diesel fuel for Your Volkswagen Passat SUV Sixth Generation (2005-2010)

Using incorrect gasoline additives can cause extensive engine damage as well as damage  
to the catalytic converter.  
If you must fuel your vehicle with gasoline whose octane rating is too low, only drive with  
the engine speed in the middle of the rpm range and with low engine load. Avoid high rpm and  
heavy engine load. Otherwise, the engine could be damaged. Refuel your vehicle with gasoline  
with the required octane rating as soon as possible.  
Do not use fuel that is labeled at the pump as containing metal. Lead replacement fuel  
contains high concentrations of metallic additives. Engine damage could result.  
Fueling your vehicle just one time with leaded fuel or fuel that contains other metallic  
additives can affect the performance of the catalytic converter and cause extensive damage to  
it.  
Diesel fuel  
Please first read and note the introductory information and heed the WARNINGS  
Always use only Ultra Low Sulfur Diesel (ULSD) fuel No. 2 ⇒ꢀ  
The ULSD must always meet ASTM D-975 specification ⇒ꢀ  
.
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“ULSD” should be clearly marked on the pump. Before filling your vehicle, please always make sure  
you are using ULSD. According to Federal regulations ULSD is the only diesel fuel type allowed for  
use in your vehicle.  
Using diesel fuel with concentrations of methyl ester biodiesel higher than 5% (B5), such as B11, B20,  
or B100 when B5 biodiesel is available, is contrary to the terms of your New Vehicle Limited Warranty  
and is strictly prohibited.  
ULSD diesel fuel may not be available outside the USA and Canada. Be sure to check availability  
before traveling to other countries.  
Winter diesel  
At temperatures below 20 °F (-7 °C), wax separation in ULSD occurs. Wax may clog the fuel filter or  
tank filter and keep the engine from running.  
To help prevent the filter from being clogged with wax, the fuel filter in your vehicle is heated with  
warm fuel when the engine is running (filter preheating system). Heating the fuel filter makes it  
possible to use your vehicle with ULSD down to about -10 °F (-24 °C).  
If you expect temperatures below +5 °F (-15 °C) ask your fuel dealer if their ULSD is sufficiently  
winterized.  
If non-winterized or insufficiently winterized diesel fuel has already thickened to the point that the  
engine will not start, move the vehicle to a heated garage or workshop until it has warmed up.  
Cold diesel engines normally produce louder noises during winter conditions than during warmer  
periods. In addition, the exhaust gases may be light blue in color until the engine has warmed up. The  
exhaust gas volume varies depending on the outside temperature.  
Do not let your diesel engine idle unnecessarily after a cold start. Driving off slowly will shorten the  
warm-up period.  
Illinois registered vehicles  
Biodiesel is a domestically produced, clean-burning and renewable partial substitute for conventional  
(petroleum) diesel fuel.  
Your vehicle was originally designed to run on “ULSD” – Ultra Low Sulfur Diesel fuel [ASTM D-975  
standard Grade No. 2-D (S15)] that complies with ASTM D-975 specifications and permits up to a  
maximum blend of 5 % biodiesel (B5).  
Due to Illinois state tax incentives or regulations for biofuels, biodiesel blends of B5 or less may not be  
available in Illinois. However, we want to assure you that Volkswagen will continue to honor the terms  
and conditions of the Volkswagen Limited Warranties that came with your vehicle. Use only Biodiesel  
from high quality sources, certified by the BQ-9000 label at the fuel station and complying to ASTM D  
7467 S15, B6 to B20.  
Using diesel fuel with concentrations of methyl ester biodiesel higher than 20 % (B20), such as B100  
is still contrary to the terms of your Emission warranties or any other Volkswagen Limited Warranty  
and remains strictly prohibited.  
Biodiesel blends (up to B20) may be used in your Illinois registered TDI® Clean Diesel vehicle;  
however, please be aware that biodiesel has characteristics that are different from other kinds of fuel,  
especially petroleum-based fuels.  
Biodiesel can attract water and also deteriorate with age. Small amounts of biodiesel can get into the  
engine oil, but unlike petroleum diesel, it does not evaporate over time. This can cause the oil level in  
the engine to rise and can affect the quality of the oil.  
Routinely check the engine oil level. A good time to do this is when you refuel, especially if you  
regularly do a lot of short distance or stop-and-go driving. This will help you see if the engine oil level  
is getting higher. (A rising oil level beyond the maximum indicator means an oil change is needed due  
to the dilution of the oil in the system; a potential characteristic of biodiesel use) ⇒ꢀpage 285, Engine  
oil.  
If you ever notice that the engine oil level has risen or is above the maximum indicator, contact  
your authorized Volkswagen dealer, authorized Volkswagen Service Facility or Volkswagen Customer  
CARE to schedule an oil change – regardless of the time or mileage that has elapsed since you last  
had an oil change performed.  
Continue to follow the oil change intervals found in the Warranty and Maintenance booklet that  
came with your vehicle, and use only engine oil that expressly complies with Volkswagen quality  
standard VW 507 00.  
Refuel only at trusted, commercial fueling stations that are located near main highways. These  
stations are more likely to have “fresh” biodiesel fuels that have not aged significantly.  
If your vehicle will be in storage (or not driven) for several weeks or months, please completely fill  
the fuel tank. If possible, fill the tank with Ultra Low Sulfur Diesel fuel [ASTM D-975 standard Grade  
No. 2-D (S15)].  
If you have additional questions about your Illinois registered TDI® Clean Diesel vehicle, please call or  
write to us at:  
Volkswagen of America, Inc.  
Attn: Customer CARE  
3800 Hamlin Road, Auburn Hills, MI 48326  
Tel.: 1-800-444-8982  
WARNING  
Starting fluids can explode and cause a run-away vehicle condition.  
Never use starting assist fluids.  
NOTICE  
The vehicle's diesel engine was designed solely for use with ULSD fuel. For this reason,  
never use gasoline, heating oil, or other fuels that have not been expressly approved for use  
with the diesel engine. These fuels contain substances that will severely damage the fuel  
system and the engine. Such damage will not be covered by any Volkswagen Limited Warranty.  
If you put any amount of the incorrect fuel in the fuel tank, do not start the engine under any  
circumstances. Immediately contact the nearest authorized Volkswagen dealer or authorized  
Volkswagen Service Facility for assistance.  
If diesel fuel should get on any rubber hose, it must be wiped off immediately. The same  
applies if diesel fuel gets onto other parts of the vehicle, especially paint, tires, or a plastic  
part. Wash the contaminated vehicle parts right away with soap and warm water to help  
prevent leaks and serious damage.  
Damage to the engine and fuel system and performance problems caused by using fuels  
that are different from those specified above or by using “starting assist fluids” are not the  
responsibility of Volkswagen and are not covered under the Emission warranties or any other  
Volkswagen Limited Warranty.  
The vehicle is warranted to run on diesel fuel containing methyl ester biodiesel in  
concentrations of 5 % or less. Never use methyl ester biodiesel in blend levels higher than 5 %  
(5 % methyl ester blends are sometimes designated or labeled as B5) unless your vehicle is  
registered in Illinois. The properties of methyl ester biodiesel blends in levels greater than 5%  
will void coverage for related engine damage under the Emission warranties or any other  
Volkswagen Limited Warranty, unless your vehicle is registered in Illinois.  
Biodiesel especially in concentrations higher than B5, can attract water and also deteriorate  
with age. Small amounts of biodiesel can get into the engine oil, but unlike petroleum diesel, it  
does not evaporate over time. This can cause the oil level in the engine to rise and can affect  
the quality of the oil and if not detected and remedied promptly, will ultimately result in engine  
damage.